com.kth.baasio.baassample.BaseActivity.java Source code

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Here is the source code for com.kth.baasio.baassample.BaseActivity.java

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/*
 * Copyright 2012 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.kth.baasio.baassample;

import com.actionbarsherlock.app.SherlockFragmentActivity;
import com.actionbarsherlock.view.MenuItem;
import com.google.analytics.tracking.android.EasyTracker;

import android.content.Intent;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.Canvas;
import android.graphics.Paint;
import android.graphics.PorterDuff;
import android.graphics.PorterDuffXfermode;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.NavUtils;

/**
 * A base activity that handles common functionality in the app.
 */
public abstract class BaseActivity extends SherlockFragmentActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        EasyTracker.getTracker().setContext(this);

        if (getSupportActionBar() != null)
            getSupportActionBar().setHomeButtonEnabled(true);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        switch (item.getItemId()) {
        case android.R.id.home:
            // if (this instanceof HomeActivity) {
            // return false;
            // }

            NavUtils.navigateUpFromSameTask(this);
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    /**
     * Sets the icon color using some fancy blending mode trickery.
     */
    protected void setActionBarColor(int color) {
        if (color == 0) {
            color = 0xffffffff;
        }

        final Resources res = getResources();
        Drawable maskDrawable = res.getDrawable(R.drawable.actionbar_icon_mask);
        if (!(maskDrawable instanceof BitmapDrawable)) {
            return;
        }

        Bitmap maskBitmap = ((BitmapDrawable) maskDrawable).getBitmap();
        final int width = maskBitmap.getWidth();
        final int height = maskBitmap.getHeight();

        Bitmap outBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(outBitmap);
        canvas.drawBitmap(maskBitmap, 0, 0, null);

        Paint maskedPaint = new Paint();
        maskedPaint.setColor(color);
        maskedPaint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_ATOP));

        canvas.drawRect(0, 0, width, height, maskedPaint);

        BitmapDrawable outDrawable = new BitmapDrawable(res, outBitmap);
        getSupportActionBar().setIcon(outDrawable);
    }

    /**
     * Converts an intent into a {@link Bundle} suitable for use as fragment
     * arguments.
     */
    public static Bundle intentToFragmentArguments(Intent intent) {
        Bundle arguments = new Bundle();
        if (intent == null) {
            return arguments;
        }

        final Uri data = intent.getData();
        if (data != null) {
            arguments.putParcelable("_uri", data);
        }

        final Bundle extras = intent.getExtras();
        if (extras != null) {
            arguments.putAll(intent.getExtras());
        }

        return arguments;
    }

    /**
     * Converts a fragment arguments bundle into an intent.
     */
    public static Intent fragmentArgumentsToIntent(Bundle arguments) {
        Intent intent = new Intent();
        if (arguments == null) {
            return intent;
        }

        final Uri data = arguments.getParcelable("_uri");
        if (data != null) {
            intent.setData(data);
        }

        intent.putExtras(arguments);
        intent.removeExtra("_uri");
        return intent;
    }

    @Override
    protected void onStart() {
        super.onStart();
        EasyTracker.getTracker().trackActivityStart(this);
    }

    @Override
    protected void onStop() {
        super.onStop();
        EasyTracker.getTracker().trackActivityStop(this);
    }
}